What is a demerger?

A demerger involves splitting the trading activities of a single company or group into two or more independent entities. This can be facilitated by distributing the assets of a holding company to its shareholders.

There are special statutory demerger provisions that are designed to make it easier to divide and put into separate corporate ownership the trading activities of a company or group of companies. An exempt demerger will be deemed to occur under these provisions. As a result, the distribution is typically exempt from Income Tax and usually does not trigger any Capital Gains Tax, as the gains are effectively rolled over.

The provisions do not apply where a trading activity is to be sold or becomes owned by a person other than the existing member of the original company.

The provisions allow for the removal of the distribution charge in appropriate circumstances, making the distribution an ‘exempt distribution’. This applies to trading activities only. Companies that utilise the demerger provisions range from small private businesses to some of the largest public companies in the UK.

The legislation also provides for a clearance procedure. Under this a company that wants to demerge trading activities can obtain advance confirmation from HMRC that the distribution that will arise will be an exempt distribution.

Source:HM Revenue & Customs | 17-11-2025

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